Crafted of exceptionally strong DuraClearÂ® TritanÂ®, our casual drinkware offers the classic look of glass yet it won't crack, shatter, break, cloud or discolor. Ideal for everyday use and outdoor entertaining, these dishwasher-safe beer mugs make it easy to host poolside parties, picnics and backyard barbecues. DuraClear Tritan food-grade plastic is BPA-free. Will not crack, shatter, break, cloud or discolor. Dishwasher-safe mugs stack for storage. Made in USA. Set of six.